CNC Machining For Aerospace

Sanluo Precision is a professional CNC machining manufacturer and supplier for the aerospace industry in China. It is one of the few manufacturing enterprises in the country that meets the aerospace-grade processing requirements. The company provides professional CNC machining for aerospace services to its clients. The aerospace CNC machining of the company has extremely high requirements for reliability, precision, and consistency. It has always regarded zero defects as the quality goal and provides professional customized CNC machining for aerospace services for aerospace structural components, core components, and precision parts of control systems.

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Product Description

Aerospace-Grade Technical Standards

Regarding technical standards CNC machining for aerospace, Sanluo Precision operates in strict compliance with relevant quality management systems and HB aerospace standards. Our machining precision ranges from IT5 to IT6 grades; dimensional tolerances are maintained between ±0.005 mm and ±0.01 mm, while geometric and positional tolerances fall within the range of ±0.002 mm to ±0.005 mm. Surface roughness (Ra) is controlled between 0.2 μm and 0.8 μm. For specialized aerospace materials—such as TC4 titanium alloy (used in primary load-bearing structures), GH4169 superalloy (for hot-section components), and 2A97 aluminum-lithium alloy (for weight-reduction applications)—we have mastered critical technologies including low-stress cutting, constant-temperature machining, and anti-deformation fixturing. These capabilities allow us to limit internal material stress to <50 MPa and thermal deformation to <0.005 mm, thereby ensuring the long-term reliability of components in extreme operating environments. In terms of specialized equipment and environmental control, our facility features internationally advanced machinery, including the DMG MORI DMU 85 5-axis simultaneous machining center, Haas VF-series vertical machining centers, and PUMA CNC lathes.

CNC machining for aerospace Workstation Accuracy

dimensional accuracy	L（X）	W（Y）	H（Z）	SH	R
unit:±/mm	0.005	0.002	0.001	0.005	0.01
Geometric accuracy	flatness	parallelism	perpendicularity	roughness	profile tolerance
unit:±/mm	0.002	0.003	0.005	Ra0.8	0.008
production capacity	1~999999 pcs	1~999999 pcs	1~999999 pcs	1~999999 pcs	1~999999 pcs
production cycle	3-20 days	3-20 days	3-20 days	3-20 days	3-20 days

Aerospace Engineering Application Achievements

As a specialized manufacturer of CNC machining for aerospace industry, Sanluo Precision has successfully completed numerous aerospace machining projects for the civil sector. These include nozzles (fabricated from the high-temperature alloy GH4169, capable of withstanding temperatures up to 1100°C), control nozzles (fabricated from the titanium alloy TC4, featuring geometric and positional tolerances of ±0.003 mm), antenna brackets (fabricated from carbon fiber composites), and precision transmission components for docking mechanisms (featuring a coaxiality of 0.005 mm and a gear precision grade of 6). With a product acceptance rate of ≥99.8%—and a first-pass acceptance rate of ≥98% for critical components—we provide our clients with customized, precision manufacturing services.

Equipment Technical Parameters

Parameter Categories	Parameter Details
Device Model	INDEX G220
Core Positioning	Flexible and efficient processing
Configuration Flexibility	Configurable with 3 tool towers, tool magazine with up to 169 tool positions
Number of Motion Axes	Up to 16 motion axes
Processing Characteristics	With a spacious processing area, three tools can process simultaneously without collision risk
Typical Applications	Highly efficient processing for small or medium-sized complex shaft-type workpieces in mechanical engineering, semiconductor, and aerospace fields

Parameter Categories	Technical Specifications
Equipment Model	SMU50 5-Axis Vertical Machining Center
Core Positioning	High dynamic precision; suitable for small to medium-sized complex, precision parts
Travel (X/Y/Z)	500 / 450 / 450 mm
Critical Accuracy	Positioning Accuracy: 0.006 mm; Repeatability: 0.004 mm
Spindle System	Max. Spindle Speed: 20,000 rpm (Optional); Taper: HSK-A63
Bed Material	Mineral cast base featuring excellent thermal stability and superior vibration damping capabilities
Numerical Control System	Standard equipped with Siemens 840Dsl system
Typical Applications	CNC machining for aerospace precision structural components